There are some materials that are hazardous. It depends on the module type used. For most modules, it's not negligible—because it's important that we deal with this appropriately—but it is quite insignificant. Some types of modules, for instance, use cadmium telluride. It is important that we deal with those appropriately. I would say that if we have responsible measures in place, it's not a major issue, but it's something that is important nonetheless.
On March 7th, 2017. See this statement in context.